MSI Radeon HD 6950 2 GB GDDR5 2DVI/HDMI/2xMini DisplayPort PCI-Express Video Card R6950 TWIN FROZR III PE OC RAMDAC: 400 MHz Max Resolution: 2560 x 1600 CrossFireX Support; Yes Cooler: With Fan Dual-Link DVI Supported: Yes HDCP Ready: Yes HDMI: 1 x HDMI DisplayPort: 2 x Mini DisplayPort DVI: 2 x DVI (1 Single Link, 1 Dual Link) Effective Memory Clock: 1300MHz (5.2Gbps) Memory Size: 2GB Memory Interface: 256-bit Memory Type: GDDR5 GPU: Radeon HD 6950 Core Clock: 850MHz Stream Processors: 1408 Stream Processing Units 3D APIDirectX: DirectX 11 OpenGL: OpenGL 4.0 GPU: Radeon HD 6950 Core Clock: 850MHz Stream Processors: 1408 Stream Processing Units Effective Memory Clock: 1300MHz (5.2Gbps) Memory Size: 2GB Memory Interface: 256-bit Memory Type: GDDR5 3D APIDirectX: DirectX 11 OpenGL: OpenGL 4.0 HDMI: 1 x HDMI DisplayPort: 2 x Mini DisplayPort DVI: 2 x DVI (1 Single Link, 1 Dual Link) RAMDAC: 400 MHz Max Resolution: 2560 x 1600 CrossFireX Support; Yes Cooler: With Fan Dual-Link DVI Supported: Yes HDCP Ready: Yes